Form cylinder interrupter to aid in printing cylinder removal

Claim 1

IN A PRINTING PRESS HAVING A PLATE CYLINDER, A FRAME, CYLINDER SUPPORT MEANS ON SAID FRAME AT OPPOSITE ENDS OF SAID CYLINDER, AND MEANS CARRIED BY SAID FRAME AND COOPERABLE WITH ONE OF SAID SUPPORT MEANS TO EFFECT AXIAL MOVEMENT OF SAID SUPPORT MEANS RELATIVE TO SAID FRAME AND SAID CYLINDER, THE COMBINATION COMPRISING A PAIR OF FORM ROLLERS, ROLLER SUPPORTS SUPPORTING SAID ROLLERS FOR MOVEMENT ABOUT A COMMON AXIS INTO AND OUT OF ROLLING ENGAGEMENT WITH SAID CYLINDER, MOTOR MEANS FOR OPERATING SAID PRESS, MEANS FOR CONTROLLING SAID MOTOR MEANS TO START AND STOP SAID PRESS, A CONTROL DEVICE INCLUDING AN ACTUATING MEMBER, MEANS RESPONSIVE TO SAID CONTROLLING MEANS UPON STOPPING SAID PRESS FOR MOVING SAID ACTUATING MEMBER IN ONE DIRECTION TO A PREDETERMINED POSITION, MEANS RESPONSIVE TO MOVEMENT OF SAID ACTUATING MEMBER TO SAID POSITION TO MOVE SAID SUPPORTS WHEREBY TO MOVE BOTH SAID ROLLERS A PREDETERMINED DISTANCE FROM SAID CYLINDER, MEANS FORMING AN OBSTRUCTION NORMALLY PREVENTING LATERAL REMOVAL OR REPLACEMENT OF SAID CYLINDER, THE DISTANCE BETWEEN SAID OBSTRUCTION AND ONE OF SAID ROLLERS BEING NORMALLY LESS THAN THE DIAMETER OF SAID CYLINDER, MEANS FOR MOVING SAID ACTUATING MEMBER IN SAID ONE DIRECTION BEYOND SAID PREDETERMINED POSITION, AND MEANS RESPONSIVE TO FURTHER MOVEMENT OF SAID ACTUATING MEMBER IN SAID ONE DIRECTION FOR SWINGING SAID ONE ROLLER AWAY FROM SAID OBSTRUCTION SUFFICIENTLY TO PERMIT LATERAL REMOVAL OR REPLACEMENT OF SAID CYLINDER BETWEEN SAID OBSTRUCTION AND SAID ONE ROLLER.